Metallic container



July 16, 1929. L. B. wAcKMAN METALLIC CONTAINER Filed Dec. 1*'7, 1925 Patented July 16, 1929.

UNITED STATES PATENT OFFICE.

LOUIS B. WACKMAN, OF ST. LOUIS, MISSOURI.

METALLIC CONTAINER.

Application filed December 17, 1923. Serial N'o. 681,128.

A further object of t-he invention is in4 providing an improved manner of interengaging the sheet material of the barrel head with the screw-plug seat.

A still further object of the invention is in providing an improved method of securing a. closure seat to the container so as to elimina-te welding.

Other and further objects will appear in the specification and be specifically pointed out in the appended claims, reference being had to the accompanying drawings, exemplifying the invention, and in which Figure 1 is a transverse vertical section taken through a portion of a sheet metal barrel head showin this improved closure seat and its relatale screw-plug mounted thereto. l

Figure 2 is a fragmentary plan view of Fig. 1 having the screw-plug removed.

Figure 3 is a transverse vertical section showing the manner of mounting the closure seat to the barrel head before the f swedging or pressing operation has coinpleted the assembly.

Referring by numerals to the accompanying drawings, 1 designates a, portion 0f a sheet metal barrel having the usual head or end 2, said head being provided with one or more openings 3 into which the closure seat 4 is to be secured.

This improved closure seat is comprised of an annular body portion which is preferably in the form of a malleable casting having a concentrically arranged aperture 5 bearing interior threading 6 and surrounding the aperture in an annular portion 7.

An annular groove 8 is formed in the seat or collar 4 on the out-side of the annular portion 7, the formation of said groove in the collar providing a. surrounding Wall. 9 to the groove.

' In the operation of securing the closure seat to the barrel head, that part of the barrel head surrounding the opening 3 is operated upon so as to form the surrounding portion 10 of the barrel head with an .inwardly inclining portion 11, said inclinin-g portion 11 extending from an annularly formed outwardly bulged portion 12, see Fig. 3.

The closure seat 4 is then engaged into co-operative position with the opening 3 of the barrel head and in which' the neck or annular portion 7 of the closure seat is engaged through the opening and the inner extremity of the inwardly inclining portion 11 will be engaged within the lgroove 8 of the seat and against a fiber or lead washer 13 which is )reviously seated in the groove 8, and the upper extremity of t-he annular wall 9 will engage within the bulged portion 13 as shown more clearly in Fig. 3.

After the assembly of the closure seat against the under sideof the barrel head 2, the arranged together parts are operated upon by assembling dies or the like so as to carry on the swedging operation in which the neck or annular portion '7 will be forced outwardly and downwardly against the surrounding inclining portion 11 of the barrel head, said portion 7 being lirmlypressed so as to destroy the incline portion 11 and force it within the groove 8 into horizontal position beneath the portion E which is also orced into horizont-al position as shown in The upper extremity of the wall 9 is also rrnly seated against the under side of the bulged portion 12 of the barrel head and the annular outwardly incliniug portion 14 of the barrel head will be forced against the outer wall 15 of t-he closure seat.

The aforesaid operation very securely interengages the surrounding portion 3 of the barrel head with the neck or annular portion 7 of the closure seat, the inwardly pressing of t-he inclined portion 14 of the barrel head providing reinforcing means for securely lholding the closure seat against being sprung :lflroxi its interlocked position with the barrel If desired, the gasket or Washer 13 can' be eliminated .and in this event the groove 8 may be made shallower. n

The closure seat 4 is designed in such a way so that when the securing together opening friction created between the gasket 18 and surface 17 when the plug 20 is operated eration of interlocking the closure seat with the barrel has been completed, the annular portion 7 whichv was pressed downwardly in the assembling operation vwhich is further designated as 16, will be found to'be on a horizontal plane below the annular surface 17 provided by the top of the annular wall 9 engaging within the bulged portion 12 of the drum head. This construction is for the purpose of providing they point..0f sealing cont-act around the 'annular surface 17 of the barrel head when the gasket 18 is engaged between vthe surface 17 and the flange 19 of the screw-plug 20.

- Another reason forfdeslgning the closure seat 4 in the ,manner above described is so that the annular surface 17 will receive the tighttowards'tightening, the surface 16 ofthe closure seat 4 on account of being on a plane lower than the surface l17 being relieved from the maximum frictional tightening therey eliminating all tendency of the plug 20 becoming locked with the closure seat 4 and consequently eliminating turning effort lt-o the closure seat..

said aperture, said body portion havingV a l Straight walled annulaivgroove, said part of said body portion after beingt projected ythrough said aperture being pressed downing a sheet metal wall having an aperture wardly against the surrounding-material of the wall of the aperture and' providing means for engaging the surrounding material within the groove of the body portion,

-the material of said wall which is disposed outwardly of lsaid body portion being pressed against the outer side wall of said body orti'on. v l

2. -closure seat for a container comprlsformed. therein, an annular body portion having a part which is projected through said-aperture, saidv body portion having a y pressed against the outer side wall of said body portion, and a gasket located in said groove between the surrounding material and said body portion. y

3. A sheet metall container having an aperture for lling and emptying its contents formed in the body` thereof, an interiorly threaded collar located in the aperture of the container body, said collar being provided with an putwardly bendable annular projecting portion for co-operation with the surrounding material of the aperture for securing the collar within the aperture and to the container'body, said collar having a straight walled groove formed outwardly of the'annular projecting portion thereof for the reception of the surrounding material of the aperture, the` material of said container which is disposed outwardly of said collar being pressed downwardly against the outer side wall o f said collar, the lower end of said collar being flush with the inner surface of said container.

4. A closure seat for a container comprisving a sheet metal -wall having an aperture formed therein; an interiorly threaded collar having an annular extendingdportion which is projected through said aperture, -said collar having a squareY shaped groove surrounding the extending portion thereof for xthe reception of the surrounding material of-the aperture of\ said wall, said extending portion of said collar when pressed outthe surrounding material of the aperture within the groove, the material .of said Jwall disposed adjacentthe outside of the collar being pressed againstJthe' side Wall of the collar.

LOUIS B. WACKMAN.

i wardly and downwardly 'adapted to force f 

